Air conditioner



Sept. 29, 1936.

A. D. GREENE AIR CONDITIONER Filed Sept. 26, 1952 2 Sheecs-Sheet 1 glNEENTOR, W d. 4; ATTORNEY 1 m F H 1 a a O M T M. Mn mmm .v mmm I W I. 9H1 y l mmm m w M Sept. 29, 1936. v A GREENE 2,055,528

AIR CONDITIONER Filed Sept. 26, 1932 2 Sheets-Sheet 2 I I y MENTOR, I

1 9 I 4/ BY I M. MM,

' 44.; ATTORNEY Patented Sept. 29, 193

PATENT OFFICE 2.055.528 Am CONDITIONER Albert D. Greene, Alpha, Ohio,assignor to Trupar Manufacturing Company, Dayton, Ohio, a cornotation ofOhio Application September 26, 1932, Serial No. 634,837

10 Claims.

This invention relates to new and useful improvements in airconditioners.

It is one of the principal objects of my invention to provide for easyattachment to the conventional ceiling fan, a simple, economical andsillcient air conditioner.

In the floor or cabinet type of air conditioner, the conditioned air isblown out into the room to be cooled, but in my device air is taken inat the fan'height for conditioning by an expansion coil below the fan,and then diffused downwardly by bailies to all parts of the room. Thesebaffies also act as inclined channels to receive and conduct to a centerreservoir below them, the water of condensation which drips irom theexpansion coil.

It is another object of my invention to provide the fan with a housingwhich firmly supports the expansion coil and bafies in spaced relationbelow the fan to promote a proper difiusion of the conditioned airand aneflicient drainage of the water of condensation to the drip pan. Thewater conducted to this pan by the baflies is abstracted by an injectoron the compressor.

Another object of the invention is to provide means for including anumber of my ceiling fan air conditioners in multiple with a singlecompressor, whereby more than one room may be cooled from a singlesource oi refrigerant supply.

Other important and incidental objects will be brought out in thefollowing specification and particularly set forth in the subjoinedclaims.

In the accompanying drawings illustrating one form of embodiment of theinvention, Figure l is a top plan view 'of my air conditioner. Figure 2is a transverse sectional view taken through the same on the line 2-2 ofFigure 1. Figure 3 is a sectional view taken on the line 2id of Figure1, showing how the battle plates overlap.

figure 4 is a sectional view taken on the line d-d oi Figure 1, showingthe condensation drain reservoir and withdrawal tube, together with theliquid refrigerant inlet and gaseous refrigerant outlet tubes. AndFigure 5 is a side elevational View of a conventional compressor for usewith one or more of my ceiling fan air conditioners.

Referring to the accompanying drawings for a detailed description of theform of embodiment of my invention disclosed therein, the numeral ldesignates a vertical tubular support for the motor housing 2 of aconventional ceiling fan 3. For the purpose of utilizing this fan tocondition the air in the room containing it, I have pro vided the foliomeans.

clamped to the fan motor housing 2 is a split band 4 from whichhorizontal arms 5 radiate to an annular rim housing 6. At their outerends these arms are bent downwardly to form vertical portions 7 whichare secured by screws 8 to the interior surface of the rim. (See Figures1 and 5 3).

Supported upon diametric rods 8 that are secured at their ends to therim housing 6 below the fan 3, is an expansion coil or evaporator 9 madeup of a finned copper tube it. Connected ll to the inner end of thistube is a thermostatic expansion valve H which is secured to one end ofa liquid refrigerant inlet tube l2. The latter is brought into thehousing 5 through the tubular support I, from a water jacketed condensercoil 15 is on a suitable compressor M. The gaseous refrigerant'iswithdrawn from the expansion tube ill by an outlet tube I5 connected toits outer end. This outlet tube l5 passes through the tubular support Ito the compressor 14 which compresses the gaseous refrigerant andintroduces it to the condenser 13 through the tube 12. (See Figure 5).

Secured at their inner ends to the rim housing 6, below the expansioncoil 9, are radial bellies l6. Each bafile preferably consists of anelongated metal plate of substantially triangular shape, that is formedwith oppositely turned flanges H and I8 along its longitudinal edges. Asshown in Figures 3 and 4, the baffles are so 30 inclined beneath theexpansion coil that their flanges i'l overlap the flanges l8 of adjacentbaiiies without touching each other. When so arranged, these baiflesreceive the water of condensation abstracted from the surrounding air bythe finned expansion coil above, and conduct it to a central drainreservoir l8 which depends from their inner ends. This reservoir isformed with an axial hole l9 through which a cord 20 for operating theswitch 2| of the fan motor 2 projects.

The radial baffles [6 by virtue of their construction and arrangement,will also divert the air con ditioned by the fan and expansion coil,downwardly and outwardly to all parts of the room. This air is taken inat the fan height and circulated downwardly past the expansion coilwhich abstracts moisture from it, the water of condensation drippingupon the bullies which not only conduct it to the drain reservoir l8,but also direct 50 the moisture-freed air outwardly and downwardlybetween their spaced flanges l1 and I8. By these baffle means theconditioned air is diffused to all parts of the room from whose ceilingthe fan depends. I

The water of condensation which drains into the reservoir l8 from thebattles is drawn, by suction, into a tube 22 by a conventional injector23 attached to the discharge line 24 of the-condenser water jacket I3that surrounds the refrigerant tube l2 connected to the compressor M.The water drawn into the tube 22 by the injector, is discharged from thelatter through a drain pipe 25. (See Figure 5.)

In operation, the compressor is started to introduce a suitable liquidrefrigerant such as methylchloride to the expansion coil 9 orevaporator. By pulling the switch cord 20 the fan 3 is started,whereupon its rotation will cause the air at the height of the fan to beforced by the latter downwardly past the finned expansion coil 9 whichwill abstract heat and moisture from it. The air thus conditioned willbe diifused downwardly and outwardly to all parts of the room by thebattles, while the water of condensation at the same time flows alongthem into the drain reservoir I8 The air conditioning device which Ihave just described may be connected in multiple with a singlecompressor if desired, so that one source of refrigerant supply mayserve all of them.

I do not desire to be limited to the details of construction andarrangement herein shown and described, and any changes or modificationsmay be made therein within the scope of the subjoined claims.

Having described my invention, I claim:

1. In a device of the type described, a refrigerant evaporator, ahousing concentrically surrounding the latter, a fan rotatable in saidhousing above the evaporator, and battle means secured within thehousing, below the evaporator, to drain the water of condensation fromthe evaporator and diffuse the conditioned air downwardly and outwardly.

2. In a device of the type described, a refrigerant evaporator, a rimhousing concentrically surrounding the latter, a fan horizontallyrotatable in said housing above the evaporator, and radial bafile meanssecured'in the housing below the evaporator, and overlapping each otherin spaced relation along their longitudinal edges to drain the water ofcondensation from the evaporator and diifuse the conditioned airdownwardly and outwardly.

3. In a device of the type described, a refrigerant evaporator, a rimhousing concentrically surrounding the latter, a fan horizontallyrotatable in said housing above the evaporator, radial baflle meanssecured within the housing below the evaporator to diffuse theconditioned air downwardly and outwardly, and a drain reservoir at theinner ends of the baffles to receive from them the water ofcondensation.

4. In a device of the type described, a refrigerant evaporator, a rimhousing concentrically surrounding the latter, a fan horizontallyrotatable in said housing above the evaporator, flanged radial bafllemembers secured in the housing below the evaporator to' diffuse theconditioned air downwardly and outwardly, and a drain reservoir securedto the inner ends of the baflle members to receive from them the waterof condensation.

5. In a device of the type described, a refrigerant expansion coil, arim housing concentrically surrounding the latter to support it, a fanhorizontally rotatable in said housing above the coil, and battle meanssecured within the housing below the coil to drain the water ofcondensation from the coil and diifuse the conditioned air downwardlyand outwardly.

6. In a device of the type described, a refrigerant-expansion coil, arim housing concentrically surrounding the. latter to support it, a fanhorizontally rotatable in said housing above the coil, radial baiflemembers below the coil, projecting inwardly from the rim housing, and adrain reservoir below the axis of the coil, the baflle memberscommunicating with, and supporting, at

their inner ends, the said reservoir to conduct thereto the water ofcondensation which drips upon them from the coil.

7. In a device of the type described, a ceiling fan, a motor housingtherefor, a vertical support for said housing, a rim housing concentricwith said motor housing, a split band applied to the latter, radial armsprojecting from said band to the 'rim housing, to support the latter, anevaporator supported in said housing below the fan, and radial airdiverting and condensation-receiving members projecting inwardly, belowthe evaporator, from said rim housing.

8. In a device of the type described, a ceiling fan, a motor housingtherefor, a vertical support for said housing, a rim housing concentricwith said motor housing, a split band applied to the latter, radial armsprojecting from said band to the rim housing, to support the latter,diametric rods projecting between the rim housing below the fan, aspiral expansion coil supported upon said rods, radial baflle membersprojecting inwardly from the housing, below the expansion coil, and adrain reservoir for the water of condensation, depending from the innerends of the bafile members below the center of the expansion coil.

9. In a device of the type described, the combination with acompressor-condenser, of a celling fan, an evaporator located under saidfan, means below the evaporator for collecting the water of condensationfrom it, means for conducting a liquid refrigerant from thecompressorcondenser to the evaporator, means for delivering coolingwater to the condenser, and an injector on the compressor-condenser,operated by said cooling water for withdrawing the Water of condensationfrom the evaporator.

10. In a device of the type described, the combination wth acompressor-condenser, of a ceiling fan, an evaporator located under saidfan, a drain reservoir under said evaporator, means for conducting aliquid refrigerant from the compressorcondenser to the evaporator,bafiie means for receiving the water of condensation from the evaporatorand conducting it to the reservoir, means for delivering cooling waterto the condenser, and injector operated by said cooling water, and atube connected between said injector and the drainreservoir whereby thewater of condensation may be withdrawn from the latter by the injector.

. ALBERT D. GREENE.

